Flickering lights when fridge runs?

[LeoKa]

Quote [I was also in the process of moving to lithium batteries and my Magnum did not have settings for that.] Unquote

Last time I checked (past summer) Magnum Inverters now have LiFeP battery pre-sets.

I am sure you are correct. When I bought my second Magnum, I did not have lithiums yet. My Magnum is a 2018 model and it only has a custom setting, besides the flooded and AGM.
I will keep the Magnum for backup, but I wanted an inverter with the lithium technology built in. This is where Xantrex came into the picture.

 

[LeoKa]

Guess what guys! By some miracle, I've got my money back from Xantrex. There was a support person who cared and followed up the chain to push my refund through. His name is Sean, so I just want to put in a good word for him. If you have technical trouble with Xantrex, ask for him.
This saga was going on since April. Lot of back and forth every week, but it is finally over. Now I just need to buy the new inverter, which I did, but it is on back order, like everything else.